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Title: High power single-sided Bragg reflection waveguide lasers with dual-lobed far field
Authors: Wang, L. J.
Yang, Y.
Zeng, Y. G.
Wang, L. J.
Shan, X. N.
Zhao, H. X.
Wang, R.
Tong, Cunzhu
Yoon, Soon Fatt
Keywords: DRNTU::Engineering::Electrical and electronic engineering
Issue Date: 2012
Source: Wang, L. J., Yang, Y., Zeng, Y. G., Wang, L. J., Tong, C., Shan, X. N., et al. (2012). High power single-sided Bragg reflection waveguide lasers with dual-lobed far field. Applied physics B, 107(3), 809-812.
Series/Report no.: Applied physics B
Abstract: We report on 980-nm InGaAs/GaAs lasers with dual-lobed far field based on a single-sided Bragg reflection waveguide (BRW). The high slope efficiency ∼0.92 W/A and a continuous wave (CW) output power >1.5 W (3.2 W pulsed) have been obtained. The threshold current density is as low as 253 A/cm2 for a 1.5-mm-long device and the transparency current density is only 140 A/cm2. The further analysis shows the intrinsic reason for the single-lobed or the dual-lobed far-field distribution is determined by the mode shape in the cavity, not the single-sided or dual-sided BRW structure. The condition to achieve a narrow single-lobed far-field distribution is discussed.
ISSN: 0946-2171
DOI: 10.1007/s00340-012-5034-5
Rights: © 2012 Springer-Verlag.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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